MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 401d8ede073c42e3cb7c03934bbbb8b1ace7ae84c88098a680c6cefbaab26cdf. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments 1

SHA256 hash: 401d8ede073c42e3cb7c03934bbbb8b1ace7ae84c88098a680c6cefbaab26cdf
SHA3-384 hash: ef1ffca56c0160728c1597a08242e44ba1e80fa7e18443835e2cbc89b4b2b958b79c72fa40b53915dbed76950f50e9b4
SHA1 hash: 867b941b5b4e66ced5a431a083758201cd656df9
MD5 hash: 903445f22b43753564f19b9e748d36bc
humanhash: nebraska-thirteen-blossom-table
File name:903445f22b43753564f19b9e748d36bc
Download: download sample
Signature Formbook
File size:844'800 bytes
First seen:2022-10-24 13:15:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:WhxCsTdgjEnDvvRrhEX6A7cFcsW51WIgacvUc:Whx5d+EDVhEXN7cu5XcvU
TLSH T180058D35275E4F0BC0D9CE38A470D1B40BA69D7BB86E8B95CAC47CF778163A0AA1D147
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO_BSC2-2223-30169.xlsx
Verdict:
Malicious activity
Analysis date:
2022-10-24 12:34:36 UTC
Tags:
encrypted trojan opendir exploit cve-2017-11882 loader formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 729268 Sample: HUo5IBcWtY.exe Startdate: 24/10/2022 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 7 other signatures 2->40 10 HUo5IBcWtY.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\HUo5IBcWtY.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 52 Injects a PE file into a foreign processes 10->52 14 HUo5IBcWtY.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 stonegatehealthcarepartners.com 162.241.230.102, 49695, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 www.stonegatehealthcarepartners.com 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 cmmon32.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
Win32.Trojan.Taskun
Status:
Malicious
First seen:
2022-10-24 11:39:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ni4s rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
ecde19417382ff5201d7318607c059cad0c117c29c07add27962c2daff726e35
MD5 hash:
adfbf9b3ad5c7d3a3303a27895280d79
SHA1 hash:
10c60c7f6114175a8dfd80f01276d31887f75be9
Detections:
FormBook win_formbook_auto win_formbook_g0
SH256 hash:
047b401ad8d43785a552b5496a2d2a27b1daf9d2c52757baf18e8b748edaabf6
MD5 hash:
69b52510b15dd1e9d9bcff1cabc52134
SHA1 hash:
a62184cab22deeba4dbdfc3db1cd883eb1a2d081
SH256 hash:
7f272c4db499b1501a5ea1711d23de0e6a0c07faf16275e9b01722dae889c7c9
MD5 hash:
dd8b9511dda8eb7c84e1621046828883
SHA1 hash:
7f715270ffcadcba5c3148d2a0cecfaaf6c2e805
SH256 hash:
3ba16a92b2b40d38c6e5e30f882a4c60b3838611868d990b7d986eb4018c17cb
MD5 hash:
16d6f358cc62b12dc869da8a59b03eda
SHA1 hash:
5eaf3662fbd4193086df2ba7233e9652542be8a3
SH256 hash:
5f2ea160e6e82e16ed3943ce72d7f4c773022b73956d4821d85495aa0555d107
MD5 hash:
f3f533789ac44b55fe0731eeb3a0cbd1
SHA1 hash:
08e662817b0a8e1bd04d79bf0127bbf6a1469ea6
SH256 hash:
401d8ede073c42e3cb7c03934bbbb8b1ace7ae84c88098a680c6cefbaab26cdf
MD5 hash:
903445f22b43753564f19b9e748d36bc
SHA1 hash:
867b941b5b4e66ced5a431a083758201cd656df9
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 401d8ede073c42e3cb7c03934bbbb8b1ace7ae84c88098a680c6cefbaab26cdf

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-10-24 13:15:12 UTC

url : hxxp://23.254.119.208/80/vbc.exe